Motor refers to the movement of a part of the body, or something that produces that motion or refers to motion. For example, a motor neuron is a nerve cell that conveys an impulse to a muscle causing it to contract.
See also:
"Motor" is in the NAICS Code "333996"
(Fluid Power Pump and Motor ManufacturingHydrostatic transmissions manufacturing)
"Motor" is in the CPC Code "3331"
Motor spirit (gasolene) including aviation spirit
"Motor" is in the HS Code "8467"
Tools For Working In The Hand, Pneumatic Or With Self-Contained Non-Electric Motor
Other /More definition:
Motor refers to nerve impulses going out to muscles.